Was doing some internet research looking for automotive touch-up paint for my white BMW and ran across this company and product.  I recall some threads a while back discussing aerosol primers under the NAPA label and specifically if they were available in white.  Seems like the white was scarce.  Well here is another source for a white sandable primer in case anyone is still looking.  It is a lacquer based product so it should be OK as a base for dope in addition to automotive paints.   $8 a can, how does that compare to the NAPA product ?  They also have red, black, or grey.

http://www.automotivetouchup.com/spray-paint/white-primer.aspx  

I have used their product Allan and it is good.  They have a store just a couple of miles from where I live over in the industrial park.  Robert Storick was the one who suggessted the NAPA primer and I have used it also and it is the best primer I have ever used.  It dries almost instantly.  However, I have only found it in grey from NAPA.

Mike

My NAPA has white, red and grey.

The NAPA close to me closed. So the next time I drive across town to the one I go to now I will do it. But unfortunately I am not going for a while.

Stopped by my local NAPA store today to see if they had the Duplicolor DC540 or DC530 primer and it did not show up in their computor.  The guy also looked in his catalogs and could not find it either. Sounds like it is discontinued. 

Stopped by my local NAPA store today to see if they had the Duplicolor DC540 or DC530 primer and it did not show up in their computor.  The guy also looked in his catalogs and could not find it either. Sounds like it is discontinued. 

I just bought a case of 540 last week. Your guy just don't know what he's looking for. Sorry

You may be correct Robert.  Is there perhaps some information that you could share that might help me to enlighten this guy ? If so I will try again. 

Click here top of the list https://www.google.com/#q=NAPA+DC540+MSDS&undefined=undefined